tspld.c revision 1.10 1 /* $NetBSD: tspld.c,v 1.10 2005/08/26 13:19:35 drochner Exp $ */
2
3 /*-
4 * Copyright (c) 2004 Jesse Off
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the NetBSD
18 * Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 *
35 */
36
37 #include <sys/cdefs.h>
38 __KERNEL_RCSID(0, "$NetBSD: tspld.c,v 1.10 2005/08/26 13:19:35 drochner Exp $");
39
40 #include <sys/param.h>
41 #include <sys/callout.h>
42 #include <sys/kernel.h>
43 #include <sys/sysctl.h>
44 #include <sys/systm.h>
45 #include <sys/device.h>
46 #include <sys/wdog.h>
47
48 #include <machine/bus.h>
49 #include <machine/cpu.h>
50 #include <machine/autoconf.h>
51 #include "isa.h"
52 #if NISA > 0
53 #include <dev/isa/isavar.h>
54 #include <machine/isa_machdep.h>
55 #endif
56
57 #include <evbarm/tsarm/tsarmreg.h>
58 #include <evbarm/tsarm/tspldvar.h>
59 #include <arm/ep93xx/ep93xxvar.h>
60 #include <arm/ep93xx/ep93xxreg.h>
61 #include <arm/arm32/machdep.h>
62 #include <arm/cpufunc.h>
63 #include <dev/sysmon/sysmonvar.h>
64
65 int tspldmatch (struct device *, struct cfdata *, void *);
66 void tspldattach (struct device *, struct device *, void *);
67 static int tspld_wdog_setmode (struct sysmon_wdog *);
68 static int tspld_wdog_tickle (struct sysmon_wdog *);
69 int tspld_search (struct device *, struct cfdata *, const int *, void *);
70 int tspld_print (void *, const char *);
71 void boardtemp_poll (void *);
72
73 struct tspld_softc {
74 struct device sc_dev;
75 bus_space_tag_t sc_iot;
76 bus_space_handle_t sc_wdogfeed_ioh;
77 bus_space_handle_t sc_wdogctrl_ioh;
78 struct sysmon_wdog sc_wdog;
79 bus_space_handle_t sc_ssph;
80 bus_space_handle_t sc_gpioh;
81 unsigned const char * sc_com2mode;
82 unsigned const char * sc_model;
83 unsigned char sc_pldrev[4];
84 uint32_t sc_rs485;
85 uint32_t sc_adc;
86 uint32_t sc_jp[6];
87 uint32_t sc_blaster_present;
88 uint32_t sc_blaster_boot;
89 uint32_t boardtemp;
90 uint32_t boardtemp_5s;
91 uint32_t boardtemp_30s;
92 struct callout boardtemp_callout;
93 };
94
95 CFATTACH_DECL(tspld, sizeof(struct tspld_softc),
96 tspldmatch, tspldattach, NULL, NULL);
97
98 void tspld_callback __P((struct device *));
99
100 #define GPIO_GET(x) bus_space_read_4(sc->sc_iot, sc->sc_gpioh, \
101 (EP93XX_GPIO_ ## x))
102
103 #define GPIO_SET(x, y) bus_space_write_4(sc->sc_iot, sc->sc_gpioh, \
104 (EP93XX_GPIO_ ## x), (y))
105
106 #define GPIO_SETBITS(x, y) bus_space_write_4(sc->sc_iot, sc->sc_gpioh, \
107 (EP93XX_GPIO_ ## x), GPIO_GET(x) | (y))
108
109 #define GPIO_CLEARBITS(x, y) bus_space_write_4(sc->sc_iot, sc->sc_gpioh, \
110 (EP93XX_GPIO_ ## x), GPIO_GET(x) & (~(y)))
111
112 #define SSP_GET(x) bus_space_read_4(sc->sc_iot, sc->sc_ssph, \
113 (EP93XX_SSP_ ## x))
114
115 #define SSP_SET(x, y) bus_space_write_4(sc->sc_iot, sc->sc_ssph, \
116 (EP93XX_SSP_ ## x), (y))
117
118 #define SSP_SETBITS(x, y) bus_space_write_4(sc->sc_iot, sc->sc_ssph, \
119 (EP93XX_SSP_ ## x), SSP_GET(x) | (y))
120
121 #define SSP_CLEARBITS(x, y) bus_space_write_4(sc->sc_iot, sc->sc_ssph, \
122 (EP93XX_SSP_ ## x), SSP_GET(x) & (~(y)))
123
124 int
125 tspldmatch(parent, match, aux)
126 struct device *parent;
127 struct cfdata *match;
128 void *aux;
129 {
130
131 return 1;
132 }
133
134 void
135 boardtemp_poll(arg)
136 void *arg;
137 {
138 struct tspld_softc *sc = arg;
139 u_int16_t val;
140
141 /* Disable chip select */
142 GPIO_SET(PFDDR, 0x0);
143
144 val = SSP_GET(SSPDR) & 0xffff;
145 sc->boardtemp = ((int16_t)val >> 3) * 62500;
146 sc->boardtemp_5s = sc->boardtemp_5s / 20 * 19 + sc->boardtemp / 20;
147 sc->boardtemp_30s = sc->boardtemp_30s / 120 * 119 + sc->boardtemp / 120;
148
149 callout_schedule(&sc->boardtemp_callout, hz / 4);
150
151 /* Enable chip select */
152 GPIO_SET(PFDDR, 0x4);
153
154 /* Send read command */
155 SSP_SET(SSPDR, 0x8000);
156 }
157
158 void
159 tspldattach(parent, self, aux)
160 struct device *parent, *self;
161 void *aux;
162 {
163 int i, rev, features, jp, model;
164 struct tspld_softc *sc = (struct tspld_softc *)self;
165 bus_space_handle_t ioh;
166 const struct sysctlnode *node;
167
168 if (sysctl_createv(NULL, 0, NULL, NULL,
169 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw",
170 NULL, NULL, 0, NULL, 0,
171 CTL_HW, CTL_EOL) != 0) {
172 printf("%s: could not create sysctl\n",
173 sc->sc_dev.dv_xname);
174 return;
175 }
176 if (sysctl_createv(NULL, 0, NULL, &node,
177 0, CTLTYPE_NODE, sc->sc_dev.dv_xname,
178 NULL,
179 NULL, 0, NULL, 0,
180 CTL_HW, CTL_CREATE, CTL_EOL) != 0) {
181 printf("%s: could not create sysctl\n",
182 sc->sc_dev.dv_xname);
183 return;
184 }
185
186 sc->sc_iot = &ep93xx_bs_tag;
187 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_MODEL, 2, 0,
188 &ioh);
189 model = bus_space_read_2(sc->sc_iot, ioh, 0) & 0x7;
190 sc->sc_model = (model ? "TS-7250" : "TS-7200");
191 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
192 0, CTLTYPE_STRING, "boardmodel",
193 SYSCTL_DESCR("Technologic Systems board model"),
194 NULL, 0, __UNCONST(sc->sc_model), 0,
195 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
196 != 0) {
197 printf("%s: could not create sysctl\n",
198 sc->sc_dev.dv_xname);
199 return;
200 }
201 bus_space_unmap(sc->sc_iot, ioh, 2);
202
203 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_PLDREV, 2, 0,
204 &ioh);
205 rev = bus_space_read_2(sc->sc_iot, ioh, 0) & 0x7;
206 rev = 'A' + rev - 1;
207 sc->sc_pldrev[0] = rev;
208 sc->sc_pldrev[1] = 0;
209 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
210 0, CTLTYPE_STRING, "pldrev",
211 SYSCTL_DESCR("CPLD revision"),
212 NULL, 0, sc->sc_pldrev, 0,
213 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
214 != 0) {
215 printf("%s: could not create sysctl\n",
216 sc->sc_dev.dv_xname);
217 return;
218 }
219 bus_space_unmap(sc->sc_iot, ioh, 2);
220
221 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_FEATURES, 2, 0,
222 &ioh);
223 features = bus_space_read_2(sc->sc_iot, ioh, 0) & 0x7;
224 bus_space_unmap(sc->sc_iot, ioh, 2);
225
226 bus_space_map(sc->sc_iot, TS7XXX_IO8_HWBASE + TS7XXX_STATUS1, 1, 0,
227 &ioh);
228 i = bus_space_read_1(sc->sc_iot, ioh, 0) & 0x1f;
229 jp = (~((i & 0x18) >> 1) & 0xc) | (i & 0x3);
230 bus_space_unmap(sc->sc_iot, ioh, 1);
231
232 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
233 0, CTLTYPE_INT, "blaster_present",
234 SYSCTL_DESCR("Whether or not a TS-9420/TS-9202 blaster board is connected"),
235 NULL, 0, &sc->sc_blaster_present, 0,
236 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
237 != 0) {
238 printf("%s: could not create sysctl\n",
239 sc->sc_dev.dv_xname);
240 return;
241 }
242 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
243 0, CTLTYPE_INT, "blaster_boot",
244 SYSCTL_DESCR("Whether or not a blast board was used to boot"),
245 NULL, 0, &sc->sc_blaster_boot, 0,
246 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
247 != 0) {
248 printf("%s: could not create sysctl\n",
249 sc->sc_dev.dv_xname);
250 return;
251 }
252 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_STATUS2, 2, 0,
253 &ioh);
254 i = bus_space_read_2(sc->sc_iot, ioh, 0) & 0x6;
255 sc->sc_blaster_boot = sc->sc_blaster_present = 0;
256 if (i & 0x2)
257 sc->sc_blaster_boot = 1;
258 if (i & 0x4)
259 sc->sc_blaster_present = 1;
260 jp |= (i << 4);
261 bus_space_unmap(sc->sc_iot, ioh, 1);
262
263 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
264 0, CTLTYPE_INT, "rs485_avail",
265 SYSCTL_DESCR("RS485 level driver for COM2 available"),
266 NULL, 0, &sc->sc_rs485, 0,
267 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
268 != 0) {
269 printf("%s: could not create sysctl\n",
270 sc->sc_dev.dv_xname);
271 return;
272 }
273 sc->sc_com2mode = "rs232";
274 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
275 0, CTLTYPE_STRING, "com2_mode",
276 SYSCTL_DESCR("line driver type for COM2"),
277 NULL, 0, __UNCONST(sc->sc_com2mode), 0,
278 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
279 != 0) {
280 printf("%s: could not create sysctl\n",
281 sc->sc_dev.dv_xname);
282 return;
283 }
284 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
285 0, CTLTYPE_INT, "max197adc_avail",
286 SYSCTL_DESCR("Maxim 197 Analog to Digital Converter available"),
287 NULL, 0, &sc->sc_adc, 0,
288 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
289 != 0) {
290 printf("%s: could not create sysctl\n",
291 sc->sc_dev.dv_xname);
292 return;
293 }
294 printf(": Technologic Systems %s rev %c, features 0x%x",
295 sc->sc_model, rev, features);
296 sc->sc_adc = sc->sc_rs485 = 0;
297 if (features == 0x1) {
298 printf("<MAX197-ADC>");
299 sc->sc_adc = 1;
300 } else if (features == 0x2) {
301 printf("<RS485>");
302 sc->sc_rs485 = 1;
303 } else if (features == 0x3) {
304 printf("<MAX197-ADC,RS485>");
305 sc->sc_adc = sc->sc_rs485 = 1;
306 }
307 printf("\n");
308 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
309 0, CTLTYPE_INT, "jp1",
310 SYSCTL_DESCR("onboard jumper setting"),
311 NULL, 0, &sc->sc_jp[0], 0,
312 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
313 != 0) {
314 printf("%s: could not create sysctl\n",
315 sc->sc_dev.dv_xname);
316 return;
317 }
318 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
319 0, CTLTYPE_INT, "jp2",
320 SYSCTL_DESCR("onboard jumper setting"),
321 NULL, 0, &sc->sc_jp[1], 0,
322 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
323 != 0) {
324 printf("%s: could not create sysctl\n",
325 sc->sc_dev.dv_xname);
326 return;
327 }
328 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
329 0, CTLTYPE_INT, "jp3",
330 SYSCTL_DESCR("onboard jumper setting"),
331 NULL, 0, &sc->sc_jp[2], 0,
332 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
333 != 0) {
334 printf("%s: could not create sysctl\n",
335 sc->sc_dev.dv_xname);
336 return;
337 }
338 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
339 0, CTLTYPE_INT, "jp4",
340 SYSCTL_DESCR("onboard jumper setting"),
341 NULL, 0, &sc->sc_jp[3], 0,
342 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
343 != 0) {
344 printf("%s: could not create sysctl\n",
345 sc->sc_dev.dv_xname);
346 return;
347 }
348 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
349 0, CTLTYPE_INT, "jp5",
350 SYSCTL_DESCR("onboard jumper setting"),
351 NULL, 0, &sc->sc_jp[4], 0,
352 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
353 != 0) {
354 printf("%s: could not create sysctl\n",
355 sc->sc_dev.dv_xname);
356 return;
357 }
358 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
359 0, CTLTYPE_INT, "jp6",
360 SYSCTL_DESCR("onboard jumper setting"),
361 NULL, 0, &sc->sc_jp[5], 0,
362 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
363 != 0) {
364 printf("%s: could not create sysctl\n",
365 sc->sc_dev.dv_xname);
366 return;
367 }
368 printf("%s: jumpers 0x%x", sc->sc_dev.dv_xname, jp);
369 if (jp) {
370 printf("<");
371 for(i = 0; i < 5; i++) {
372 if (jp & (1 << i)) {
373 sc->sc_jp[i + 1] = 1;
374 printf("JP%d", i + 2);
375 jp &= ~(1 << i);
376 if (jp) printf(",");
377 } else {
378 sc->sc_jp[i + 2] = 0;
379 }
380 }
381 printf(">");
382 }
383 printf("\n");
384
385
386 bus_space_map(sc->sc_iot, EP93XX_APB_HWBASE + EP93XX_APB_SSP,
387 EP93XX_APB_SSP_SIZE, 0, &sc->sc_ssph);
388 bus_space_map(sc->sc_iot, EP93XX_APB_HWBASE + EP93XX_APB_GPIO,
389 EP93XX_APB_GPIO_SIZE, 0, &sc->sc_gpioh);
390 SSP_SETBITS(SSPCR1, 0x10);
391 SSP_SET(SSPCR0, 0xf);
392 SSP_SET(SSPCPSR, 0xfe);
393 SSP_CLEARBITS(SSPCR1, 0x10);
394 SSP_SETBITS(SSPCR1, 0x10);
395 GPIO_SET(PFDR, 0x0);
396 callout_init(&sc->boardtemp_callout);
397 callout_setfunc(&sc->boardtemp_callout, boardtemp_poll, sc);
398 boardtemp_poll(sc);
399 delay(1000);
400 boardtemp_poll(sc);
401 sc->boardtemp_5s = sc->boardtemp_30s = sc->boardtemp;
402 #define DEGF(c) ((c) * 9 / 5 + 32000000)
403 printf("%s: board temperature %d.%02d degC (%d.%02d degF)\n",
404 sc->sc_dev.dv_xname,
405 sc->boardtemp / 1000000, sc->boardtemp / 10000 % 100,
406 DEGF(sc->boardtemp) / 1000000, DEGF(sc->boardtemp) / 10000 % 100);
407 #undef DEGF
408 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
409 0, CTLTYPE_INT, "board_temp",
410 SYSCTL_DESCR("board temperature in micro degrees Celsius"),
411 NULL, 0, &sc->boardtemp, 0,
412 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
413 != 0) {
414 printf("%s: could not create sysctl\n",
415 sc->sc_dev.dv_xname);
416 return;
417 }
418
419 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
420 0, CTLTYPE_INT, "board_temp_5s",
421 SYSCTL_DESCR("5 second average board temperature in micro degrees Celsius"),
422 NULL, 0, &sc->boardtemp_5s, 0,
423 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
424 != 0) {
425 printf("%s: could not create sysctl\n",
426 sc->sc_dev.dv_xname);
427 return;
428 }
429
430 if ((i = sysctl_createv(NULL, 0, NULL, NULL,
431 0, CTLTYPE_INT, "board_temp_30s",
432 SYSCTL_DESCR("30 second average board temperature in micro degrees Celsius"),
433 NULL, 0, &sc->boardtemp_30s, 0,
434 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
435 != 0) {
436 printf("%s: could not create sysctl\n",
437 sc->sc_dev.dv_xname);
438 return;
439 }
440
441 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_WDOGCTRL, 2, 0,
442 &sc->sc_wdogctrl_ioh);
443 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_WDOGFEED, 2, 0,
444 &sc->sc_wdogfeed_ioh);
445
446 sc->sc_wdog.smw_name = sc->sc_dev.dv_xname;
447 sc->sc_wdog.smw_cookie = sc;
448 sc->sc_wdog.smw_setmode = tspld_wdog_setmode;
449 sc->sc_wdog.smw_tickle = tspld_wdog_tickle;
450 sc->sc_wdog.smw_period = 8;
451 sysmon_wdog_register(&sc->sc_wdog);
452 tspld_wdog_setmode(&sc->sc_wdog);
453
454 /* Set the on board peripherals bus callback */
455 config_defer(self, tspld_callback);
456 }
457
458 int
459 tspld_search(parent, cf, ldesc, aux)
460 struct device *parent;
461 struct cfdata *cf;
462 const int *ldesc;
463 void *aux;
464 {
465 struct tspld_softc *sc = (struct tspld_softc *)parent;
466 struct tspld_attach_args sa;
467
468 sa.ta_iot = sc->sc_iot;
469
470 if (config_match(parent, cf, &sa) > 0)
471 config_attach(parent, cf, &sa, tspld_print);
472
473 return (0);
474 }
475
476 int
477 tspld_print(aux, name)
478 void *aux;
479 const char *name;
480 {
481
482 return (UNCONF);
483 }
484
485 void
486 tspld_callback(self)
487 struct device *self;
488 {
489 #if NISA > 0
490 extern void isa_bs_mallocok(void);
491 struct isabus_attach_args iba;
492
493 /*
494 * Attach the ISA bus behind this bridge.
495 */
496 memset(&iba, 0, sizeof(iba));
497 iba.iba_iot = &isa_io_bs_tag;
498 iba.iba_memt = &isa_mem_bs_tag;
499 isa_bs_mallocok();
500 config_found_ia(self, "isabus", &iba, isabusprint);
501 #endif
502 /*
503 * Attach each devices
504 */
505 config_search_ia(tspld_search, self, "tspldbus", NULL);
506
507 }
508
509 static int
510 tspld_wdog_tickle(smw)
511 struct sysmon_wdog *smw;
512 {
513 struct tspld_softc *sc = (struct tspld_softc *)smw->smw_cookie;
514
515 bus_space_write_2(sc->sc_iot, sc->sc_wdogfeed_ioh, 0, 0x5);
516 return 0;
517 }
518
519 static int
520 tspld_wdog_setmode(smw)
521 struct sysmon_wdog *smw;
522 {
523 int i, ret = 0;
524 struct tspld_softc *sc = (struct tspld_softc *)smw->smw_cookie;
525
526 i = disable_interrupts(I32_bit|F32_bit);
527 if ((smw->smw_mode & WDOG_MODE_MASK) == WDOG_MODE_DISARMED) {
528 bus_space_write_2(sc->sc_iot, sc->sc_wdogfeed_ioh, 0, 0x5);
529 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0, 0);
530 } else {
531 bus_space_write_2(sc->sc_iot, sc->sc_wdogfeed_ioh, 0, 0x5);
532 switch (smw->smw_period) {
533 case 1:
534 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0,
535 0x3);
536 break;
537 case 2:
538 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0,
539 0x5);
540 break;
541 case 4:
542 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0,
543 0x6);
544 break;
545 case 8:
546 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0,
547 0x7);
548 break;
549 default:
550 ret = EINVAL;
551 }
552 }
553 restore_interrupts(i);
554 return ret;
555 }
556